[Python-3000] PEP 3131 - the details (original) (raw)

Hernan M Foffani hfoffani at gmail.com
Thu May 17 11:27:51 CEST 2007

> The same as in .NET (and hence IronPython)?

This kind of research is time consuming; it cost me an hour to come up with above list. Please research it for yourself.

FYI:

ECMA-334

C# Language Specification 9 Lexical structure 9.4 Tokens 9.4.2 Identifiers Paragraph 1 (Page 55, Line 11)

1 The rules for identifiers rules given in this section correspond exactly to those recommended by the Unicode Standard Annex 15 except that underscore is allowed as an initial character (as is traditional in the C programming language), Unicode escape sequences are permitted in identifiers, and the "@" character is allowed as a prefix to enable keywords to be used as identifiers.

identifier : available-identifier @ identifier-or-keyword

available-identifier : An identifier-or-keyword that is not a keyword

identifier-or-keyword : identifier-start-character identifier-part-charactersopt

identifier-start-character : letter-character _ (the underscore character U+005F)

identifier-part-characters : identifier-part-character identifier-part-characters identifier-part-character

identifier-part-character : letter-character decimal-digit-character connecting-character combining-character formatting-character

letter-character : A Unicode character of classes Lu, Ll, Lt, Lm, Lo, or Nl A unicode-escape-sequence representing a character of classes Lu, Ll, Lt, Lm, Lo, or Nl

combining-character : A Unicode character of classes Mn or Mc A unicode-escape-sequence representing a character of classes Mn or Mc

decimal-digit-character : A Unicode character of the class Nd A unicode-escape-sequence representing a character of the class Nd

connecting-character : A Unicode character of the class Pc A unicode-escape-sequence representing a character of the class Pc

formatting-character : A Unicode character of the class Cf A unicode-escape-sequence representing a character of the class Cf

Disclaimer: don't know the specification date nor its authenticity.

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